A study suggests much of the water originated in rocks from which Earth is built. AUDIE CORNISH, HOST: ... She says that source of water could have been farther out in the solar system, like maybe icy comets or water-rich asteroids that hit the newly formed Earth and watered it. This has long been the prevailing view
From the question you can immediately infer that it's either B or D, as A and C basically mean the same thing and it isn't anything related to a microscope. I can tell you now that you don't need an electron microscope to see cells, they're only required for the atomic level.
Therefore, the answer is B, as you can't see cells without a microscope but you only need a light microscope, not an electron microscope.
Answer:
To decrease workload of the heart
.
Explanation:
These blockers are used in the treatment of CAD to decrease the myocardial oxygen by reducing heart rate and workload of the heart.
Nitrates are used for vasodilation.
Anti-lipid drugs are used to decrease homocysteine levels.
ACE inhibitors inhibit the conversion of angiotensin.
Answer:
False
Explanation:
Mitosis is the process of replacing damaged and old cells.
